Heater-register box



(No Model.) r

' J. DETWILER.

HEATER REGISTER BOX.

No. 372,130. Patented Oct. 25, 1887.

Fig. I.

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- UNITED STATES PATENT OFFICE.

JOHN DETWILER, OF MALVERN, PENNSYLVANIA.

HEATER-REGISTER BOX.

SPECIFICATION forming part of Letters Patent No. 372,130, dated 0ctober25, 1887.

Application filed April 30, 1887, Serial No. 236,622. (No model.)

To all whom it may concern:

Be it known that I, JOHN DETWILER, a citizen of the United States,residing at Malvern, in the county of Chester,State of Pennsylvania,have invented a new and useful Improvement in Heater-RegisterBoxes,which improvement is fully set forth in the followingspecification and accompanying drawings.

My invention relates to heating devices connected with furnaces forheating houses, 8:0.

It consists in a novel form of register box connected to,or adapted tobe connected to,existing furnace-pipes at their entrance into the roomor chamber to be heated, the box being of such novel construction as topermit the hot air-,to ascend into the room through its center,while thecold air passes out through ventilating-holes arranged about itsperiphery, the invention being especially serviceable for preventingdrafts or puffs of cold air entering a room or apartmentfrom blowing thehot air rising in the hot-air flue back into said. flue.

It also consists in certain novel features, hereinafter specified, andparticularly pointed out-in the claims which follow this specification.

Figure 1 is a cross-section of a part of a building, showing theinterior of two rooms, the cellar, furnace, and my improved apparatus.Fig. 2 is a plan view of my improved register-box. Fig. 3 is acrosssection of Fig. 2 taken on line 00 m.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referringto the drawings, A represents the furnace, of usualconstruction; 13 B, the hotair pipes; G O my register-boxes in position;D D, cold-air flues connecting the various rooms with the cellar, theflue D having register-doors-.E E, the outlet of said flue being shownatF, and having a register-door, if desired.

Referring, now, particularly to Fig. 3, 0 represents the registerbox,having shoulders GG adapted tov fit snugly against the floor andceiling, as in the lower story, or in the wall, as seen in Fig. 1. Thisbox is made of two casings or parts, 0 and H, the latter fitting intothe former, and having in its upper side hot-air register-holes I,wh ichhave the usual form of shutter-register, K. The outer part,

G, is provided with holes L L, and an additional sliding register, M,ofwell-known form, for opening and closing the same. The hot-air pipe B isinserted between the parts Cand H, and connected thereto by beingattached to the lip N. It will be seen that by this arrangement the pipebecomes a wall for both the hot and cold air passages. The'boxisseparable, and. can be applied to any hot-air pipe of proper size.

The register 0 differs from register 0 in having the hot-air pipe passthrough the side of the outer casing, and also in having the outer orcold-air chamber of the register communicating directly with thecold-air flue.

I will now describe the mode of operation of my invention.

It is a well-known fact in the art of heating buildings that as the hotair ascends the cold air is forced to the bottom of the room. It is old,as I am aware, to allow the coldair to pass into flues, and thence tothe outside of the building, and to furnish the building with a draft ofcold air from the outside of the building. Such features areobjectionable, for the reason that under certain conditions, de pendentupon the direction of the wind, it is impossible to keep the houseproperly warmed,

the draft orpuffs of wind forcing the hot air rising in the hot-air flueback or down said flue and preventing the proper ascent of the same.With my invention I furnish a circulation of air wholly within thehouse, the cold air be ing allowed to fall, by the flues D D and holesLL, to the cellar,when it again passes through the furnace and isreheated. Of course it will be understood that ventilators may beprovided in any well-known manner, such features being wholly without myinvention.

Asthe air is heated in the drum of the furnace A, it ascends to theregisters C G, by the hot-air pipes B B, and enters the rooms, as shownby the ascending arrows, the registers of course being open. The hot airascends while the cold air descends, passing back to the cellar by thecold-air holes L L and coldair flues D D, as shown by the descendingarrows. Of course it is understood that the necessary regulation of bothhot and cold airwill be effected by the registers K and M,either jointlyor independently, as desired.

IPO

I may use the left-hand flue D, with its registers E,E, and F, inconnection with the hotair registers and cold-air holes L L, or alone,as desired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A heater system consisting of a furnace, a hot-air pipe leadingtherefrom to a registerbox, said register-box having a hot-air flue, anda cold-air flue surrounding said hot-air flue, in combination with aseparate cold-air pipe, substantially as described.

2. The combination of a register having outer and inner casings, andprovided with dampers,with the hot-air pipe passing th rough the outercasing of the register on the side thereof, and into the inner casing,anda coldair flue connected with the outer chamber of the said register,substantially as described.

JOHN DETVVILER.

Witnesses:

J. H. ELKINTON, S. O. TEAMER.

